SZ
Power
Three
Core-type Transformer
Oil-immersed Type Transformer
Two-winding Transformer
ISO9001-2000, ISO9001
Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
Power Frequency
Ring
Ville
Hydroelectric (Power) Station
ville
The Accessories Packed in Plywood Cases,The Main B
IEC60076
Ningbo China
8504109000
Product Description
Three phase 60Hz, Dyn1, 69/13.8kV, Power transformer with Off-Load Tap Changer, ONAN/ONAF
Technical parameters:
Technical parameters:
| Rated Capacity(MVA): | 20 |
| Voltage ratio HV(KV): | 69 |
| Voltage ratio LV(KV): | 13.8kv |
| Voltage ratio HV Tapping Range(kv): | ± 8 x 1.25% |
| Connection symbol: | YND11 |
| No-load Loss(KW): | 24 |
| No-load Current(%): | 0.5 |
| Full-load Loss(KW): | 89.1 |
| Impedance(%): | 9 |
| Reference Temperature | ° C | 75 | |||||
| No-Load Losses at Principal Tapping: | W | 9.0 kW | |||||
| Looses of Cooling Fan System | W | / | |||||
| Insulation Levels (LI/AC): | LI325AC140/LI125AC55 | ||||||
| No Load Current: | @ Un | % In | 0.56 | ||||
| @ 1.05 Un | % In | 0.68 | |||||
| Sound Level: | dB | < 67 | |||||
| Short Circuit Impedance at Principal Tapping: | P/S | % Un | 8~10% | ||||
| P/T | % Un | ||||||
| S/T | % Un | ||||||
| Reference Temperature | ° C | 75 | |||||
| Top Oil Temperature Rise: | °C | 51K | |||||
| Average Winding Temperature Rise: | °C | 64K | |||||
| Insulation Resistance (Reference Temperature = 20°C): | |||||||
| HV/LV / | Mohms | ≥1000 | |||||
| HV/GR - LV/GR - | Mohms | ≥1000 | |||||
Our advantages:
Quality Assurance
--From the very beginning, VILLE ensures quality in every step to achieve the best quality.
Experience Sharing
--With more than 30 years' experience in power industry, VILLE brings you an optimized solution.
Global Service
--Wherever you are, VILLE global network will support and provide you with value.
Quick Response
--In response to your needs without delay, VILLE knows the value of your time.
